I know about Hebrewbooks.org for searching for sources in books, but the problem is you have to get to let's say every Masechta to look for a phrase. Is there a program (doesn't have to be free) that lets you search for Gemara, Zohars, Rishonim, Aharonim, Roseh Yeshivot, Pesukim etc. and gives you all the sources for them?

2 Answers
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The Bar-Ilan Responsa project has an online version that allows free searches, displaying up to 150 words from each result. This is an extremely powerful program, as its textbase is "clean" and edited, as opposed to many other search programs (such as Hebrewbooks and Otzar HaChochma) which are mostly based on error-prone, OCR-derived text.

If you can find a nearby library which subscribes, you can get the full service.
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yitznewtonDec 23 '11 at 16:41

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@yitznewton I have a cousin who's name is Yitz and is from Newton...Pretty interesting! What I wanted to say was that would Goyishe libraries have it?
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Hacham GabrielDec 23 '11 at 16:51

@Dave there is no way to thank you enough for this, I could use thing all day@
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Hacham GabrielDec 23 '11 at 17:01

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@H'Gabriel - I'll let you in on another secret: For $50 a year, you can get access to the Spertus online collection, which includes the full Bar-Ilan program, as well as DBS and Judaic Classics. See here (spertus.edu/content/…).
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DaveDec 23 '11 at 17:17

I know but you have to search every Sefer to find each source. For example if I was looking for the words "Safek Deorayata LeHumra" I would have to go to every Masechta in Shas and search there. I want one where you search the phrase "Safek Deorayta LuHumra" and it brings let's say Shut HaRashba 2:233 and Hidushei HaRitva Gittin 76b or Ben Ish Hai Balak Halcha 7.
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Hacham GabrielDec 23 '11 at 16:07

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@H'Gabriel I don't understand, if you type "Safek Deorayata LeHumra" in hebrewbooks it would find it in all seforim that they have (without having to re-search it in a sefer)
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Shmuel BrinDec 23 '11 at 17:46

I never realized that. I always ignored that sidebar. Well, I still like the Bar Ilan one better.
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Hacham GabrielDec 23 '11 at 17:50